Isocol Chemistry

What Isocol Chemistry does

Isocoll Chemie GmbH (operating as Isocol Chemistry) is a German specialty chemicals manufacturer focused exclusively on butyl rubber (IIR) and polyisobutylene (PIB) based sealing and adhesive systems. The company, headquartered in Nördlingen with a second production facility in Erkelenz, is a subsidiary within the family-owned Gerlinger-Gruppe. Its product portfolio spans sealants, tapes, hotmelts, round cords, profiles, damping pads, and custom die-cut parts organized by application: construction and building components, automotive OEM/supplier/aftermarket, solar modules and composites (including wind rotor blades), insulating glass, and HVAC, metal construction, and white goods. The company also operates sub-brands (Fortax, Gerband, ISODAMP) and offers private-label and contract manufacturing services.

The firm's core technical differentiation is documented performance versus competing sealant chemistries: water vapor permeability is reportedly lower than polyurethane by a factor of approximately 40, MS-polymer by approximately 60, polysulfide by approximately 55, and silicone by approximately 200, alongside very low water absorption, high gas impermeability (validated to EN 1279-3/-4 for insulating glass), high ozone resistance, radon sealing capability, and customizable properties spanning hard-to-soft and non-adhesive to extremely adhesive. Both non-reactive and reactive (expandable Blähbutyl) systems are produced, with high-temperature-resistant variants for composite manufacturing up to 200–205°C.

Isocoll operates a B2B sales-led and enterprise field-sales model, selling directly to industrial manufacturers across the verticals listed above and providing project-based technical consultation, on-site application simulation, and custom formulation support. Pricing is not publicly disclosed; customers engage the sales team for quotes. Revenue streams include sale of branded butyl products, private-label and contract manufacturing, and technical consultation services. The company maintains a modest digital presence (company website, LinkedIn, XING) and is not publicly listed or venture-backed; managing director Friedrich Gerlinger is the named Geschäftsführer.

Name

Isocol Chemistry

Legal name

Isocoll Chemie GmbH

Website

https://isocoll.de

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Isocoll Chemie GmbH is a German specialty chemicals manufacturer of butyl rubber and polyisobutylene based sealants, tapes, hotmelts, and damping products serving automotive, construction, insulating glass, HVAC, and solar/composites customers, with private-label manufacturing capabilities under the Gerlinger-Gruppe.

Ownership category

akta.pro rank

Product category

Industrial Sealants and Adhesives

NAICS

Adhesive Manufacturing (32552), Resin and Synthetic Rubber Manufacturing (32521), Paint, Coating, and Adhesive Manufacturing (3255)

SIC

Adhesives & Sealants (2891), Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) (2820), Fabricated Rubber Products, Nec (3060)

akta.pro primary industry

Adhesives (Structural & Assembly) (IMAEAGAH)

akta.pro secondary industries

Tapes, Labels & Pressure-Sensitive Adhesives (IMAEAGAJ), Adhesive, Sealant & Gasket Rubber Compounds (IMANAJAI)

Keywords

• Butyl sealants
• Industrial adhesives
• Insulating glass sealants
• Automotive sealants
• Construction sealants

Headquarters

HQ city

Nördlingen

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Butyl Sealant Products: Manufacture and sale of butyl rubber-based sealants, tapes, and adhesive products for industrial applications including automotive, construction, solar, and HVAC sectors.
2. Private Label / Contract Manufacturing: Custom manufacturing services where customers can have products made with their own label and specifications. Includes custom formulations, colors, and packaging.
3. Technical Consultation Services: Project-based technical support including product selection assistance, custom sealant/adhesive formulation development, and on-site application simulation.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Isocoll Chemie GmbH develops, manufactures, and sells butyl rubber and polyisobutylene (PIB) based sealant and adhesive products — including tapes, hotmelts, profiles, round cords, and specialty compounds — for industrial customers across automotive, construction, insulating glass, solar/composites, HVAC, and white goods sectors. The company also provides private label/contract manufacturing services, custom formulation development, and on-site application simulation support.

Product overview

Isocol Chemistry (Isocoll Chemie GmbH), headquartered in Nördlingen and part of the Gerlinger-Gruppe, offers a comprehensive portfolio of butyl-based sealing and adhesive products. The core product system (Butyl-Dichtstoff-Systeme) includes sealants, tapes, hotmelts, round cords, profiles, and specialty formulations. Products are organized by industry application: Construction (Isocoll 650, 605 Superflex, 602, 692, 612, 619, 301/305/350 sk films, 6790, Fortax 6500), HVAC/Metal Construction (Isocoll 657, 606/607, 706-733, 564, 6136 Klima), Insulating Glass (Isocoll 3770/3373/3774/3775, 6440 hotmelt, butyl profiles), Automotive (Isocoll 6151/6175 watershield, Blähbutyl, 6773, ISODAMP 7900, 6130 white), and Solar/Composites (Isocoll 6386 series, 6551). The company also provides Private Label and contract manufacturing services for custom formulations and coated/laminated products.

Differentiator

Problem solved

Functional benefit

Brands

• Fortax: Fortax System - adhesive sealant products for air-tight sealing of vapor barriers to building structures (e.g., Fortax 6500 cartridge/sachet adhesive sealant)
• Gerband
• ISODAMP
• Gerband

Products and services

• Construction / Building Industry Butyl Sealant System Complete range of butyl-based sealing products for the construction and building components industry, including double-sided self-adhesive butyl rubber tapes (Isocoll 650), highly stretchable polyolefin-backed butyl tapes (Isocoll 605 Superflex with >300% elongation), alu-PE composite tapes for facade sealing (Isocoll 602), butyl round cords (Isocoll 692), fleece-backed butyl tapes for critical substrate transitions (Isocoll 612), cold self-adhesive sealing sheets for pressure-water-resistant sealing (Isocoll 619), three-layer foil-fleece sealing films for window installation (Isocoll 301sk/305sk/350sk), PE-butyl rubber sealing tape (Isocoll 609 sk), Fortax 6500 foil adhesive in cartridges/tube bags, and hand-formable soft-plastic sealing mass (Isocoll 6790 Knetmasse). For construction companies, building component manufacturers, and window/facade installers.
• HVAC / Metal Construction / White Goods Butyl Sealant System Range of butyl and composite tapes for climate, ventilation, metal construction, and white goods manufacturers. Includes Isocoll 657 butyl sealing tape without carrier (overpaintable, non-corrosive), Isocoll 606/607 aluminum-PETP composite tapes for sheet-insulated insulations, Isocoll 706-733 aluminum foil and composite tapes for bonding aluminum/metal-laminated mineral fiber insulation joints, Isocoll 564 flexible PVC tape (flame-retardant, self-extinguishing), and Isocoll 6136 Klima special climate formulation for automated flange and profile application in ventilation duct component series production. For HVAC equipment manufacturers, ventilation duct producers, metal construction companies, and white goods manufacturers.
• Insulating Glass Industry Sealant System PIB and IIR polymer-based primary sealants (Isocoll 3770/3373/3774/3775) for insulating glass manufacturing in various densities (1.10–1.39 kg/m³) and processing temperatures (130–180°C), supplied as blocks in combi-cans, drums, or barrels. Includes Isocoll 6440 Hotmelt secondary sealant (MVR 44 cm³/10min at 140°C/2.16kg, density ~1.2 kg/m³) and butyl round/flat profile cords with or without reinforcement (flat profiles from 0.6mm thickness and 3.0mm width; round cords from D 1.7mm × 55m). For manufacturers of double and triple-glazed insulating glass units requiring EN 1279-compliant gas retention and moisture barrier properties.
• Automotive OEM / Supplier Sealant System Comprehensive butyl sealant range for automotive applications including automated watershield sealing systems (Isocoll 6151/6175 delivered from 200-liter drums), reactive expandable butyl products (Blähbutyl) for body sound reduction and structural reinforcement as extrudates and coextrudates, dimensionally cut water-resistant edge-sealing butyl tapes for electronic control units and cable harnesses (Isocoll 6773), composite damping pads for automotive sound damping (ISODAMP 7900), and white butyl sealant for exterior trim/window sealing (Isocoll 6130 White). For automotive OEMs, tier suppliers, caravan manufacturers, and the automotive aftermarket (Kfz-Teilehandel).
• Solar Module / Composites Sealant System Water vapor barrier butyl systems for high-strength edge bonding in automated solar module sealing systems (Isocoll 6386 series, delivered from 200-liter drums) and high-temperature-resistant butyl tapes for composite manufacturing (Isocoll 6551, available in yellow up to 205°C, red up to 165°C, and black up to 120°C variants) with residue-free removability after back-processes up to 200°C. For solar module manufacturers and rotor blade / wind turbine composite producers.
• Private Label / Contract Manufacturing Service Custom manufacturing services allowing customers to produce butyl rubber sealants, polyisobutylene hotmelts, butyl tapes, butyl cords, extruded profiles, die-cut parts, and specialty products under their own brand and specifications. Includes custom formulations, colors, geometries, packaging, and coating/lamination of roofing membranes, sealing films, PVC sheets, EPDM sheets, and butyl sheets. Also includes cartridge filling of butyl sealants for testing and repair kits, and equipment support including on-site automated sealant application simulation. Flexible batch sizes from small test runs to large production volumes. For industrial customers seeking branded butyl sealant supply without in-house manufacturing.
• Butyl Sealant Equipment and Application Support Technical equipment support services including on-site simulation of automated sealant application without disrupting existing customer process flows, and filling of butyl sealants into cartridges on in-house equipment to support customer trials and repair kit production. For industrial customers integrating Isocoll sealants into automated production lines.

Quantifiable outcome

• Water vapor permeability is lower than polyurethane by factor ~40, MS polymer by factor ~60, polysulfide by factor ~55, and silicone by factor ~200
• +2 more outcomes

Named customers10 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

One partnership is on record.

• Gerlinger GmbH & Co. KGcoreOthersIsocoll Chemie GmbH is a company of the Gerlinger-Gruppe (Gerlinger GmbH & Co. KG). The parent company is based in Nördlingen and provides corporate oversight, shared services, and brand affiliation. Isocoll operates as part of this established industrial group, benefiting from shared resources and market positioning.

Scale indicators2 records

Recent moves1 record

Expansion highlights4 records

Direct peers

• H.B. Fuller Company: US-headquartered industrial adhesives and sealants manufacturer serving construction, packaging, automotive, and assembly. Comparable to Isocoll through its specialty adhesives/sealants business serving overlapping B2B industrial customers.
• Sika AG: Swiss specialty chemicals company with leading positions in construction sealants, automotive bonding, and industrial sealing — directly overlapping Isocoll's automotive, construction, and HVAC end-markets. Comparable as a premium industrial sealants specialist with similar B2B sales motion.
• Bostik (Arkema): Global adhesives and sealants business of Arkema serving construction, industrial assembly, and automotive. Highly comparable to Isocoll across hotmelt, tape, and sealant categories, though at much greater scale and with a multi-chemistry portfolio.
• Trelleborg AB (Sealing Solutions): Global engineered polymer and rubber sealing solutions business serving automotive, industrial, and aerospace customers. Comparable to Isocoll through its specialty rubber-based sealing products for industrial and mobility end-markets.
• Tremco-Illbruck (Tremco CPG): European-focused construction sealants and passive house specialist offering butyl tapes, window sealing tapes, and airtightness solutions. Closely comparable to Isocoll's construction product line (vapor barriers, facade sealing, window installation tapes) in target customers and product types.
• KÖMMERLING (H.B. Fuller brand): European sealants and adhesives brand (part of H.B. Fuller) with strong presence in window fabrication, insulating glass, and construction sealants. Closely comparable to Isocoll's insulating glass secondary sealants and construction product lines.

Broad incumbents

• Henkel AG & Co. KGaA: Global leader in adhesives, sealants, and functional coatings with a much broader portfolio spanning consumer and industrial markets. Directly comparable to Isocoll through its industrial adhesive and sealant business lines, but vastly larger and more diversified across chemistries and geographies.
• Saint-Gobain (Weber / Adfors): Global building materials and construction solutions group with sealants, tapes, and façade products. Comparable to Isocoll's construction segment through overlapping products for airtightness, vapor barriers, and building envelope sealing.
• DOWSIL (Dow Inc.): Major silicone and specialty chemicals producer with construction sealants, insulating glass sealants, and industrial sealing products. Comparable to Isocoll in insulating glass, construction, and automotive sealing applications, particularly as a competing chemistry platform.
• 3M Industrial Adhesives and Tapes: Diversified industrial conglomerate with a major adhesives and tapes division serving automotive, construction, electronics, and composites. Directly overlaps with Isocoll's tape and pressure-sensitive product offerings but at vastly greater scale and across many chemistries.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInde.linkedin.com/company/isocoll-chemie-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Isocol Chemistry